2015 Audi A5 2.0L Diesel · BC15 AAV

The latest MOT test on the 2015 Audi A5 recorded a passing result with several persistent advisories, indicating that while the vehicle remains roadworthy, its condition warrants closer attention to prevent potential future failures. The trend in the MOT history shows a pattern of recurring brake disc wear and corrosion, particularly on the front and rear assemblies, with advisories consistently flagging pitting, scoring, and edge corrosion across all four discs. The 2023 failure—marked by dangerous defects in the front tyres, including exposed ply and structural separation—suggests that the vehicle’s tyre condition has deteriorated significantly in recent years, though the latest test has since rectified this with advisories on wear and minor damage. This suggests either a reactive maintenance approach or a history of underutilisation that has allowed wear to progress without timely intervention. The recorded mileage of 53,894 miles for a vehicle aged approximately 11 years is unusually low, reflecting either infrequent use or extended periods of standing. At around 4,899 miles per year, this rate is far below the typical wear patterns expected for a car of this age, which often accumulates closer to 10,000–15,000 miles annually. Such low mileage can mask wear on consumables like brake pads, suspension components, and fluids, as they may not have been subjected to the same levels of stress. However, prolonged idling or infrequent driving can also accelerate corrosion in brake systems, particularly on components like discs and calipers, which may have been exposed to moisture or road salt without regular movement. The combination of low mileage and the recurring MOT advisories on brake discs suggests that the vehicle’s maintenance schedule may have been inconsistent, leaving critical components vulnerable to accelerated degradation. For the prospective buyer, the most urgent inspection should focus on the brake system, given the persistent advisories and the risk of corrosion-induced failure. Visually inspect all four brake discs for further pitting, scoring, or signs of warping, and check for any binding or excessive play in the calipers, which could indicate hydraulic issues or seized components. During a test drive, listen for uneven brake pedal travel, pulsations under braking, or a spongy feel, as these symptoms may signal warped discs or failing brake fluid. The front tyres, particularly the offside and near-side, show significant wear and cracking, with the 2023 failure highlighting structural damage. Replace these tyres immediately, as exposed ply or cords are a safety hazard and cannot be repaired. Additionally, verify that the brake fluid is clean and at the correct level, as degraded fluid can compromise braking performance. Beyond the brakes, the vehicle’s low mileage profile necessitates a thorough check of the suspension and undercarriage for signs of rust or corrosion, especially in areas prone to standing, such as the wheel arches, exhaust brackets, and underbody seals. Inspect the suspension bushes and coil springs for stiffness or excessive play, as these can degrade over time and lead to clunking noises during cornering or over bumps. Check for fluid leaks under the vehicle, particularly around the oil dipstick, coolant reservoir, and brake master cylinder, as leaks can indicate failing seals or fluid degradation. Given the vehicle’s age, consider a professional inspection of the engine bay for signs of oil contamination or fluid degradation, as these can affect engine longevity. Finally, address the headlamp alignment issue noted in the 2023 MOT, as improper aim can impair visibility and increase the risk of accidents. Ensure all fluids, including coolant, brake fluid, and power steering fluid, are topped up and renewed according to manufacturer recommendations, as fluid degradation accelerates with age, even at low mileage.